package com.javen.service;  

import com.javen.entitys.User;
  
  
public interface IUserService {  
	
	/*
     * 第二步
     */
    public User getUserById(int userId);
    
    public int insert(User user);
    
    public int insertSelective(User user);
    
    public int updateByPrimaryKeySelective(User user);
    
    public int deleteByPrimaryKey(Integer id);
}  